1) This was due to a typo. The release of Python 3.4 saw the introduction of new introspection information on many C-implemented functions thanks to Argument Clinic (see PEP 436, I think it is). As part of that (still ongoing) transition, the default doctrings for type slots like __ge__ were given Argument Clinic-style signatures, and __ge__ had a typo.

I fixed that typo on Friday (actually prompted by your previous issue about len's bad signature).

2) That marker now shows that all proceeding arguments are positional-only.  We should probably make sure that is well documented somewhere, possibly in the tutorial.

3) This was also due to the typo I fixed.